cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A223658 Number of n X n 0..3 arrays with row sums unimodal and column sums inverted unimodal.

Original entry on oeis.org

4, 256, 141046, 761845474, 44626165058452
Offset: 1

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Author

R. H. Hardin Mar 25 2013

Keywords

Comments

Diagonal of A223663

Examples

			Some solutions for n=3
..1..0..2....0..0..1....0..0..1....0..1..0....3..0..2....2..1..3....2..0..2
..3..2..3....2..0..1....2..0..3....3..3..2....1..2..2....3..2..1....0..2..2
..0..1..2....2..1..2....0..2..2....3..1..1....2..2..0....0..2..2....3..1..3

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